Here is the source for most of the plugins I use. Terrain Tools can be used for the water's edge foam. Shader Ops for Fake Fresnel, lots of control there.[

http://digitalcarversguild.com/](http://digitalcarversguild.com/)

GeoControl is a standalone terrain generator, used by Vue & TerraGen artists also.

http://www.cajomi.de/GeoControl/geocontrol.htm

Here's a tutorial for creating custom plants in Carrara.

http://forums.polyloop.net/carrara-tutorials/5835-custom-leaf-photo-uv-map-tutorial.html